package com.thirtyparty.controller;

import com.aliyun.oss.OSS;
import com.aliyun.oss.common.utils.BinaryUtil;
import com.aliyun.oss.model.MatchMode;
import com.aliyun.oss.model.PolicyConditions;
import com.common.utils.R;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.Map;

@RestController
public class OSSController {

    @Autowired
    OSS ossClient;

    @Value("${spring.cloud.alicloud.oss.endpoint}")
    private String endpoint;

    @Value("${spring.cloud.alicloud.oss.bucket}")
    private String bucket;

    @Value("${spring.cloud.alicloud.access-key}")
    private String accessId;

    @RequestMapping("/oss/policy")          //返回签名，使前端不需要通过服务器访问OSS服务器了，直接从前端进行访问
    public R policy() {

//		String bucket = "gulimall-docker"; // 请填写您的 bucketname 。
        String host = "https://" + bucket + "." + endpoint; // host的格式为 bucketname.endpoint
        // callbackUrl为 上传回调服务器的URL，请将下面的IP和Port配置为您自己的真实信息。
        String callbackUrl = "http://88.88.88.88:8888";

        String format = new SimpleDateFormat("yyyy-MM-dd").format(new Date());            //自定义文件存储路径
        String dir = format + "/"; // 用户上传文件时指定的前缀。

        // 创建OSSClient实例。
//			OSS ossClient = new OSSClientBuilder().build(endpoint, accessId, accessKey);

        Map<String, String> respMap = new LinkedHashMap<String, String>();
        try {
            long expireTime = 30;
            long expireEndTime = System.currentTimeMillis() + expireTime * 1000;
            Date expiration = new Date(expireEndTime);
            PolicyConditions policyConds = new PolicyConditions();
            policyConds.addConditionItem(PolicyConditions.COND_CONTENT_LENGTH_RANGE, 0, 1048576000);
            policyConds.addConditionItem(MatchMode.StartWith, PolicyConditions.COND_KEY, dir);

            String postPolicy = ossClient.generatePostPolicy(expiration, policyConds);
            byte[] binaryData = postPolicy.getBytes("utf-8");
            String encodedPolicy = BinaryUtil.toBase64String(binaryData);
            String postSignature = ossClient.calculatePostSignature(postPolicy);

            respMap.put("accessid", accessId);
            respMap.put("policy", encodedPolicy);
            respMap.put("signature", postSignature);
            respMap.put("dir", dir);
            respMap.put("host", host);
            respMap.put("expire", String.valueOf(expireEndTime / 1000));
            //respMap.put("expire", formatISO8601Date(expiration));         跨域方式已经单独配置了，所以不需要
//			JSONObject jasonCallback = new JSONObject();
//			jasonCallback.put("callbackUrl", callbackUrl);
//			jasonCallback.put("callbackBody",
//					"filename=${object}&size=${size}&mimeType=${mimeType}&height=${imageInfo.height}&width=${imageInfo.width}");
//			jasonCallback.put("callbackBodyType", "application/x-www-form-urlencoded");
//			String base64CallbackBody = BinaryUtil.toBase64String(jasonCallback.toString().getBytes());
//			respMap.put("callback", base64CallbackBody);
//
//			JSONObject ja1 = JSONObject.fromObject(respMap);
//			// System.out.println(ja1.toString());
//			response.setHeader("Access-Control-Allow-Origin", "*");
//			response.setHeader("Access-Control-Allow-Methods", "GET, POST");
//			response(request, response, ja1.toString());

        } catch (Exception e) {
            // Assert.fail(e.getMessage());
            System.out.println(e.getMessage());
        } finally {
            ossClient.shutdown();
        }
        return R.ok().put("data", respMap);
    }

}
